HD-RH1 User Manual Shutter Menu26Shutter MenuTable 7. Shutter Menu fieldsFunction Options DescriptionOff (default) Disables individual shutter adjustment.Shutter position is OPEN (0%).Fixed Shutter is set to FIXED EXP valueELC Shutter controlled via LEVEL knobC-SCAN Shutter is set to C-SCAN positionOpen (default) Shutter position is fully open.(See Table 8 for options avaliable per frame rate.)0% (default) Sets variable shutter position fromRange: 0 ~ 100% 0% = Open to 100% = 1/500C-SCANMODEEXPOSUREMODEUsed to set the operation of the CCD’s electronic shutter.ELCShutter is controlled from OPEN to 1/10,000 via the front panel LEVEL knob.NOTE: Turning ELC on will automatically turn off VAR GAIN and vice versa.SHUTTERMODE: OFFEXPOSURE: OPENC-SCAN: 0%